fh_copy_shallow(&dp->dl_fh, ¤t_fh->fh_handle);
dp->dl_time = 0;
atomic_set(&dp->dl_count, 1);
- INIT_WORK(&dp->dl_recall.cb_work, nfsd4_do_callback_rpc);
+ nfsd4_init_callback(&dp->dl_recall);
return dp;
}
spin_unlock(&nfsd_drc_lock);
}
-static struct nfsd4_session *alloc_session(int slotsize, int numslots)
+static struct nfsd4_session *__alloc_session(int slotsize, int numslots)
{
struct nfsd4_session *new;
int mem, i;
return register_xpt_user(conn->cn_xprt, &conn->cn_xpt_user);
}
-static __be32 nfsd4_new_conn(struct svc_rqst *rqstp, struct nfsd4_session *ses, u32 dir)
+static void nfsd4_init_conn(struct svc_rqst *rqstp, struct nfsd4_conn *conn, struct nfsd4_session *ses)
{
- struct nfsd4_conn *conn;
int ret;
- conn = alloc_conn(rqstp, dir);
- if (!conn)
- return nfserr_jukebox;
nfsd4_hash_conn(conn, ses);
ret = nfsd4_register_conn(conn);
if (ret)
/* oops; xprt is already down: */
nfsd4_conn_lost(&conn->cn_xpt_user);
- if (ses->se_client->cl_cb_state == NFSD4_CB_DOWN &&
- dir & NFS4_CDFC4_BACK) {
+ if (conn->cn_flags & NFS4_CDFC4_BACK) {
/* callback channel may be back up */
nfsd4_probe_callback(ses->se_client);
}
- return nfs_ok;
}
-static __be32 nfsd4_new_conn_from_crses(struct svc_rqst *rqstp, struct nfsd4_session *ses)
+static struct nfsd4_conn *alloc_conn_from_crses(struct svc_rqst *rqstp, struct nfsd4_create_session *cses)
{
u32 dir = NFS4_CDFC4_FORE;
- if (ses->se_flags & SESSION4_BACK_CHAN)
+ if (cses->flags & SESSION4_BACK_CHAN)
dir |= NFS4_CDFC4_BACK;
-
- return nfsd4_new_conn(rqstp, ses, dir);
+ return alloc_conn(rqstp, dir);
}
/* must be called under client_lock */
spin_unlock(&clp->cl_lock);
}
+static void __free_session(struct nfsd4_session *ses)
+{
+ nfsd4_put_drc_mem(slot_bytes(&ses->se_fchannel), ses->se_fchannel.maxreqs);
+ free_session_slots(ses);
+ kfree(ses);
+}
+
static void free_session(struct kref *kref)
{
struct nfsd4_session *ses;
- int mem;
lockdep_assert_held(&client_lock);
ses = container_of(kref, struct nfsd4_session, se_ref);
nfsd4_del_conns(ses);
- spin_lock(&nfsd_drc_lock);
- mem = ses->se_fchannel.maxreqs * slot_bytes(&ses->se_fchannel);
- nfsd_drc_mem_used -= mem;
- spin_unlock(&nfsd_drc_lock);
- free_session_slots(ses);
- kfree(ses);
+ __free_session(ses);
}
void nfsd4_put_session(struct nfsd4_session *ses)
spin_unlock(&client_lock);
}
-static struct nfsd4_session *alloc_init_session(struct svc_rqst *rqstp, struct nfs4_client *clp, struct nfsd4_create_session *cses)
+static struct nfsd4_session *alloc_session(struct nfsd4_channel_attrs *fchan)
{
struct nfsd4_session *new;
- struct nfsd4_channel_attrs *fchan = &cses->fore_channel;
int numslots, slotsize;
- __be32 status;
- int idx;
-
/*
* Note decreasing slot size below client's request may
* make it difficult for client to function correctly, whereas
if (numslots < 1)
return NULL;
- new = alloc_session(slotsize, numslots);
+ new = __alloc_session(slotsize, numslots);
if (!new) {
nfsd4_put_drc_mem(slotsize, fchan->maxreqs);
return NULL;
}
init_forechannel_attrs(&new->se_fchannel, fchan, numslots, slotsize);
+ return new;
+}
+
+void init_session(struct svc_rqst *rqstp, struct nfsd4_session *new, struct nfs4_client *clp, struct nfsd4_create_session *cses)
+{
+ int idx;
new->se_client = clp;
gen_sessionid(new);
new->se_cb_seq_nr = 1;
new->se_flags = cses->flags;
new->se_cb_prog = cses->callback_prog;
+ new->se_cb_sec = cses->cb_sec;
kref_init(&new->se_ref);
idx = hash_sessionid(&new->se_sessionid);
spin_lock(&client_lock);
spin_unlock(&clp->cl_lock);
spin_unlock(&client_lock);
- status = nfsd4_new_conn_from_crses(rqstp, new);
- /* whoops: benny points out, status is ignored! (err, or bogus) */
- if (status) {
- spin_lock(&client_lock);
- free_session(&new->se_ref);
- spin_unlock(&client_lock);
- return NULL;
- }
if (cses->flags & SESSION4_BACK_CHAN) {
struct sockaddr *sa = svc_addr(rqstp);
/*
rpc_copy_addr((struct sockaddr *)&clp->cl_cb_conn.cb_addr, sa);
clp->cl_cb_conn.cb_addrlen = svc_addr_len(sa);
}
- nfsd4_probe_callback(clp);
- return new;
}
/* caller must hold client_lock */
}
static void
-expire_client(struct nfs4_client *clp)
+destroy_client(struct nfs4_client *clp)
{
struct nfs4_openowner *oo;
struct nfs4_delegation *dp;
spin_unlock(&client_lock);
}
+static void expire_client(struct nfs4_client *clp)
+{
+ nfsd4_client_record_remove(clp);
+ destroy_client(clp);
+}
+
static void copy_verf(struct nfs4_client *target, nfs4_verifier *source)
{
memcpy(target->cl_verifier.data, source->data,
return true;
}
+/*
+ * RFC 3530 language requires clid_inuse be returned when the
+ * "principal" associated with a requests differs from that previously
+ * used. We use uid, gid's, and gss principal string as our best
+ * approximation. We also don't want to allow non-gss use of a client
+ * established using gss: in theory cr_principal should catch that
+ * change, but in practice cr_principal can be null even in the gss case
+ * since gssd doesn't always pass down a principal string.
+ */
+static bool is_gss_cred(struct svc_cred *cr)
+{
+ /* Is cr_flavor one of the gss "pseudoflavors"?: */
+ return (cr->cr_flavor > RPC_AUTH_MAXFLAVOR);
+}
+
+
static bool
same_creds(struct svc_cred *cr1, struct svc_cred *cr2)
{
- if ((cr1->cr_flavor != cr2->cr_flavor)
+ if ((is_gss_cred(cr1) != is_gss_cred(cr2))
|| (cr1->cr_uid != cr2->cr_uid)
|| (cr1->cr_gid != cr2->cr_gid)
|| !groups_equal(cr1->cr_group_info, cr2->cr_group_info))
INIT_LIST_HEAD(&clp->cl_lru);
INIT_LIST_HEAD(&clp->cl_callbacks);
spin_lock_init(&clp->cl_lock);
- INIT_WORK(&clp->cl_cb_null.cb_work, nfsd4_do_callback_rpc);
+ nfsd4_init_callback(&clp->cl_cb_null);
clp->cl_time = get_seconds();
clear_bit(0, &clp->cl_cb_slot_busy);
rpc_init_wait_queue(&clp->cl_cb_waitq, "Backchannel slot table");
}
static struct nfs4_client *
-find_confirmed_client(clientid_t *clid)
+find_confirmed_client(clientid_t *clid, bool sessions)
{
struct nfs4_client *clp;
unsigned int idhashval = clientid_hashval(clid->cl_id);
list_for_each_entry(clp, &conf_id_hashtbl[idhashval], cl_idhash) {
if (same_clid(&clp->cl_clientid, clid)) {
+ if ((bool)clp->cl_minorversion != sessions)
+ return NULL;
renew_client(clp);
return clp;
}
}
static struct nfs4_client *
-find_unconfirmed_client(clientid_t *clid)
+find_unconfirmed_client(clientid_t *clid, bool sessions)
{
struct nfs4_client *clp;
unsigned int idhashval = clientid_hashval(clid->cl_id);
list_for_each_entry(clp, &unconf_id_hashtbl[idhashval], cl_idhash) {
- if (same_clid(&clp->cl_clientid, clid))
+ if (same_clid(&clp->cl_clientid, clid)) {
+ if ((bool)clp->cl_minorversion != sessions)
+ return NULL;
return clp;
+ }
}
return NULL;
}
status = nfserr_jukebox;
goto out;
}
+ new->cl_minorversion = 1;
gen_clid(new);
add_to_unconfirmed(new, strhashval);
struct sockaddr *sa = svc_addr(rqstp);
struct nfs4_client *conf, *unconf;
struct nfsd4_session *new;
+ struct nfsd4_conn *conn;
struct nfsd4_clid_slot *cs_slot = NULL;
- bool confirm_me = false;
__be32 status = 0;
if (cr_ses->flags & ~SESSION4_FLAG_MASK_A)
return nfserr_inval;
+ if (check_forechannel_attrs(cr_ses->fore_channel))
+ return nfserr_toosmall;
+ new = alloc_session(&cr_ses->fore_channel);
+ if (!new)
+ return nfserr_jukebox;
+ status = nfserr_jukebox;
+ conn = alloc_conn_from_crses(rqstp, cr_ses);
+ if (!conn)
+ goto out_free_session;
nfs4_lock_state();
- unconf = find_unconfirmed_client(&cr_ses->clientid);
- conf = find_confirmed_client(&cr_ses->clientid);
+ unconf = find_unconfirmed_client(&cr_ses->clientid, true);
+ conf = find_confirmed_client(&cr_ses->clientid, true);
if (conf) {
cs_slot = &conf->cl_cs_slot;
status = check_slot_seqid(cr_ses->seqid, cs_slot->sl_seqid, 0);
if (status == nfserr_replay_cache) {
status = nfsd4_replay_create_session(cr_ses, cs_slot);
- goto out;
+ goto out_free_conn;
} else if (cr_ses->seqid != cs_slot->sl_seqid + 1) {
status = nfserr_seq_misordered;
- goto out;
+ goto out_free_conn;
}
} else if (unconf) {
+ unsigned int hash;
+ struct nfs4_client *old;
if (!same_creds(&unconf->cl_cred, &rqstp->rq_cred) ||
!rpc_cmp_addr(sa, (struct sockaddr *) &unconf->cl_addr)) {
status = nfserr_clid_inuse;
- goto out;
+ goto out_free_conn;
}
cs_slot = &unconf->cl_cs_slot;
status = check_slot_seqid(cr_ses->seqid, cs_slot->sl_seqid, 0);
if (status) {
/* an unconfirmed replay returns misordered */
status = nfserr_seq_misordered;
- goto out;
+ goto out_free_conn;
}
- confirm_me = true;
+ hash = clientstr_hashval(unconf->cl_recdir);
+ old = find_confirmed_client_by_str(unconf->cl_recdir, hash);
+ if (old)
+ expire_client(old);
+ move_to_confirmed(unconf);
conf = unconf;
} else {
status = nfserr_stale_clientid;
- goto out;
+ goto out_free_conn;
}
-
- /*
- * XXX: we should probably set this at creation time, and check
- * for consistent minorversion use throughout:
- */
- conf->cl_minorversion = 1;
+ status = nfs_ok;
/*
* We do not support RDMA or persistent sessions
*/
cr_ses->flags &= ~SESSION4_PERSIST;
cr_ses->flags &= ~SESSION4_RDMA;
- status = nfserr_toosmall;
- if (check_forechannel_attrs(cr_ses->fore_channel))
- goto out;
+ init_session(rqstp, new, conf, cr_ses);
+ nfsd4_init_conn(rqstp, conn, new);
- status = nfserr_jukebox;
- new = alloc_init_session(rqstp, conf, cr_ses);
- if (!new)
- goto out;
- status = nfs_ok;
memcpy(cr_ses->sessionid.data, new->se_sessionid.data,
NFS4_MAX_SESSIONID_LEN);
memcpy(&cr_ses->fore_channel, &new->se_fchannel,
/* cache solo and embedded create sessions under the state lock */
nfsd4_cache_create_session(cr_ses, cs_slot, status);
- if (confirm_me) {
- unsigned int hash = clientstr_hashval(unconf->cl_recdir);
- struct nfs4_client *old =
- find_confirmed_client_by_str(conf->cl_recdir, hash);
- if (old)
- expire_client(old);
- move_to_confirmed(conf);
- }
out:
nfs4_unlock_state();
dprintk("%s returns %d\n", __func__, ntohl(status));
return status;
+out_free_conn:
+ free_conn(conn);
+out_free_session:
+ __free_session(new);
+ goto out;
}
static bool nfsd4_last_compound_op(struct svc_rqst *rqstp)
return nfserr_inval;
}
+__be32 nfsd4_backchannel_ctl(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_backchannel_ctl *bc)
+{
+ struct nfsd4_session *session = cstate->session;
+
+ spin_lock(&client_lock);
+ session->se_cb_prog = bc->bc_cb_program;
+ session->se_cb_sec = bc->bc_cb_sec;
+ spin_unlock(&client_lock);
+
+ nfsd4_probe_callback(session->se_client);
+
+ return nfs_ok;
+}
+
__be32 nfsd4_bind_conn_to_session(struct svc_rqst *rqstp,
struct nfsd4_compound_state *cstate,
struct nfsd4_bind_conn_to_session *bcts)
{
__be32 status;
+ struct nfsd4_conn *conn;
if (!nfsd4_last_compound_op(rqstp))
return nfserr_not_only_op;
return nfserr_badsession;
status = nfsd4_map_bcts_dir(&bcts->dir);
- if (!status)
- nfsd4_new_conn(rqstp, cstate->session, bcts->dir);
- return status;
+ if (status)
+ return status;
+ conn = alloc_conn(rqstp, bcts->dir);
+ if (!conn)
+ return nfserr_jukebox;
+ nfsd4_init_conn(rqstp, conn, cstate->session);
+ return nfs_ok;
}
static bool nfsd4_compound_in_session(struct nfsd4_session *session, struct nfs4_sessionid *sid)
__be32 status = 0;
nfs4_lock_state();
- unconf = find_unconfirmed_client(&dc->clientid);
- conf = find_confirmed_client(&dc->clientid);
+ unconf = find_unconfirmed_client(&dc->clientid, true);
+ conf = find_confirmed_client(&dc->clientid, true);
if (conf) {
clp = conf;
copy_clid(new, conf);
else /* case 4 (new client) or cases 2, 3 (client reboot): */
gen_clid(new);
- /*
- * XXX: we should probably set this at creation time, and check
- * for consistent minorversion use throughout:
- */
new->cl_minorversion = 0;
gen_callback(new, setclid, rqstp);
add_to_unconfirmed(new, strhashval);
return nfserr_stale_clientid;
nfs4_lock_state();
- conf = find_confirmed_client(clid);
- unconf = find_unconfirmed_client(clid);
+ conf = find_confirmed_client(clid, false);
+ unconf = find_unconfirmed_client(clid, false);
/*
* We try hard to give out unique clientid's, so if we get an
* attempt to confirm the same clientid with a different cred,
unsigned int hash = clientstr_hashval(unconf->cl_recdir);
conf = find_confirmed_client_by_str(unconf->cl_recdir, hash);
- if (conf) {
- nfsd4_client_record_remove(conf);
+ if (conf)
expire_client(conf);
- }
move_to_confirmed(unconf);
nfsd4_probe_callback(unconf);
}
if (openowner_slab == NULL)
goto out_nomem;
lockowner_slab = kmem_cache_create("nfsd4_lockowners",
- sizeof(struct nfs4_openowner), 0, 0, NULL);
+ sizeof(struct nfs4_lockowner), 0, 0, NULL);
if (lockowner_slab == NULL)
goto out_nomem;
file_slab = kmem_cache_create("nfsd4_files",
}
static struct nfs4_openowner *
-find_openstateowner_str(unsigned int hashval, struct nfsd4_open *open)
+find_openstateowner_str(unsigned int hashval, struct nfsd4_open *open, bool sessions)
{
struct nfs4_stateowner *so;
struct nfs4_openowner *oo;
+ struct nfs4_client *clp;
list_for_each_entry(so, &ownerstr_hashtbl[hashval], so_strhash) {
if (!so->so_is_open_owner)
continue;
if (same_owner_str(so, &open->op_owner, &open->op_clientid)) {
oo = openowner(so);
+ clp = oo->oo_owner.so_client;
+ if ((bool)clp->cl_minorversion != sessions)
+ return NULL;
renew_client(oo->oo_owner.so_client);
return oo;
}
struct nfs4_file *fp = (struct nfs4_file *)fl->fl_owner;
struct nfs4_delegation *dp;
- BUG_ON(!fp);
- /* We assume break_lease is only called once per lease: */
- BUG_ON(fp->fi_had_conflict);
+ if (!fp) {
+ WARN(1, "(%p)->fl_owner NULL\n", fl);
+ return;
+ }
+ if (fp->fi_had_conflict) {
+ WARN(1, "duplicate break on %p\n", fp);
+ return;
+ }
/*
* We don't want the locks code to timeout the lease for us;
* we'll remove it ourself if a delegation isn't returned
return nfserr_jukebox;
strhashval = ownerstr_hashval(clientid->cl_id, &open->op_owner);
- oo = find_openstateowner_str(strhashval, open);
+ oo = find_openstateowner_str(strhashval, open, cstate->minorversion);
open->op_openowner = oo;
if (!oo) {
- clp = find_confirmed_client(clientid);
+ clp = find_confirmed_client(clientid, cstate->minorversion);
if (clp == NULL)
return nfserr_expired;
goto new_owner;
return nfs_ok;
}
-static void nfs4_free_stateid(struct nfs4_ol_stateid *s)
-{
- kmem_cache_free(stateid_slab, s);
-}
-
static inline int nfs4_access_to_access(u32 nfs4_access)
{
int flags = 0;
if (open->op_file)
nfsd4_free_file(open->op_file);
if (open->op_stp)
- nfs4_free_stateid(open->op_stp);
+ free_generic_stateid(open->op_stp);
}
__be32
status = nfserr_stale_clientid;
if (STALE_CLIENTID(clid, nn))
goto out;
- clp = find_confirmed_client(clid);
+ clp = find_confirmed_client(clid, cstate->minorversion);
status = nfserr_expired;
if (clp == NULL) {
/* We assume the client took too long to RENEW. */
clp = list_entry(pos, struct nfs4_client, cl_lru);
dprintk("NFSD: purging unused client (clientid %08x)\n",
clp->cl_clientid.cl_id);
- nfsd4_client_record_remove(clp);
expire_client(clp);
}
spin_lock(&recall_lock);
return nfs_ok;
}
-static __be32 nfsd4_lookup_stateid(stateid_t *stateid, unsigned char typemask, struct nfs4_stid **s)
+static __be32 nfsd4_lookup_stateid(stateid_t *stateid, unsigned char typemask, struct nfs4_stid **s, bool sessions)
{
struct nfs4_client *cl;
struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id);
return nfserr_bad_stateid;
if (STALE_STATEID(stateid, nn))
return nfserr_stale_stateid;
- cl = find_confirmed_client(&stateid->si_opaque.so_clid);
+ cl = find_confirmed_client(&stateid->si_opaque.so_clid, sessions);
if (!cl)
return nfserr_expired;
*s = find_stateid_by_type(cl, stateid, typemask);
if (ZERO_STATEID(stateid) || ONE_STATEID(stateid))
return check_special_stateids(net, current_fh, stateid, flags);
- status = nfsd4_lookup_stateid(stateid, NFS4_DELEG_STID|NFS4_OPEN_STID|NFS4_LOCK_STID, &s);
+ status = nfsd4_lookup_stateid(stateid, NFS4_DELEG_STID|NFS4_OPEN_STID|NFS4_LOCK_STID, &s, cstate->minorversion);
if (status)
return status;
status = check_stateid_generation(stateid, &s->sc_stateid, nfsd4_has_session(cstate));
seqid, STATEID_VAL(stateid));
*stpp = NULL;
- status = nfsd4_lookup_stateid(stateid, typemask, &s);
+ status = nfsd4_lookup_stateid(stateid, typemask, &s, cstate->minorversion);
if (status)
return status;
*stpp = openlockstateid(s);
memcpy(&close->cl_stateid, &stp->st_stid.sc_stateid, sizeof(stateid_t));
nfsd4_close_open_stateid(stp);
+ release_last_closed_stateid(oo);
oo->oo_last_closed_stid = stp;
if (list_empty(&oo->oo_owner.so_stateids)) {
struct nfs4_delegation *dp;
stateid_t *stateid = &dr->dr_stateid;
struct nfs4_stid *s;
- struct inode *inode;
__be32 status;
if ((status = fh_verify(rqstp, &cstate->current_fh, S_IFREG, 0)))
return status;
- inode = cstate->current_fh.fh_dentry->d_inode;
nfs4_lock_state();
- status = nfsd4_lookup_stateid(stateid, NFS4_DELEG_STID, &s);
+ status = nfsd4_lookup_stateid(stateid, NFS4_DELEG_STID, &s, cstate->minorversion);
if (status)
goto out;
dp = delegstateid(s);
struct nfs4_lockowner *lock_sop = NULL;
struct nfs4_ol_stateid *lock_stp;
struct file *filp = NULL;
- struct file_lock file_lock;
- struct file_lock conflock;
+ struct file_lock *file_lock = NULL;
+ struct file_lock *conflock = NULL;
__be32 status = 0;
bool new_state = false;
int lkflg;
if (!locks_in_grace(SVC_NET(rqstp)) && lock->lk_reclaim)
goto out;
- locks_init_lock(&file_lock);
+ file_lock = locks_alloc_lock();
+ if (!file_lock) {
+ dprintk("NFSD: %s: unable to allocate lock!\n", __func__);
+ status = nfserr_jukebox;
+ goto out;
+ }
+
+ locks_init_lock(file_lock);
switch (lock->lk_type) {
case NFS4_READ_LT:
case NFS4_READW_LT:
filp = find_readable_file(lock_stp->st_file);
if (filp)
get_lock_access(lock_stp, NFS4_SHARE_ACCESS_READ);
- file_lock.fl_type = F_RDLCK;
+ file_lock->fl_type = F_RDLCK;
break;
case NFS4_WRITE_LT:
case NFS4_WRITEW_LT:
filp = find_writeable_file(lock_stp->st_file);
if (filp)
get_lock_access(lock_stp, NFS4_SHARE_ACCESS_WRITE);
- file_lock.fl_type = F_WRLCK;
+ file_lock->fl_type = F_WRLCK;
break;
default:
status = nfserr_inval;
status = nfserr_openmode;
goto out;
}
- file_lock.fl_owner = (fl_owner_t)lock_sop;
- file_lock.fl_pid = current->tgid;
- file_lock.fl_file = filp;
- file_lock.fl_flags = FL_POSIX;
- file_lock.fl_lmops = &nfsd_posix_mng_ops;
-
- file_lock.fl_start = lock->lk_offset;
- file_lock.fl_end = last_byte_offset(lock->lk_offset, lock->lk_length);
- nfs4_transform_lock_offset(&file_lock);
-
- /*
- * Try to lock the file in the VFS.
- * Note: locks.c uses the BKL to protect the inode's lock list.
- */
+ file_lock->fl_owner = (fl_owner_t)lock_sop;
+ file_lock->fl_pid = current->tgid;
+ file_lock->fl_file = filp;
+ file_lock->fl_flags = FL_POSIX;
+ file_lock->fl_lmops = &nfsd_posix_mng_ops;
+ file_lock->fl_start = lock->lk_offset;
+ file_lock->fl_end = last_byte_offset(lock->lk_offset, lock->lk_length);
+ nfs4_transform_lock_offset(file_lock);
+
+ conflock = locks_alloc_lock();
+ if (!conflock) {
+ dprintk("NFSD: %s: unable to allocate lock!\n", __func__);
+ status = nfserr_jukebox;
+ goto out;
+ }
- err = vfs_lock_file(filp, F_SETLK, &file_lock, &conflock);
+ err = vfs_lock_file(filp, F_SETLK, file_lock, conflock);
switch (-err) {
case 0: /* success! */
update_stateid(&lock_stp->st_stid.sc_stateid);
case (EAGAIN): /* conflock holds conflicting lock */
status = nfserr_denied;
dprintk("NFSD: nfsd4_lock: conflicting lock found!\n");
- nfs4_set_lock_denied(&conflock, &lock->lk_denied);
+ nfs4_set_lock_denied(conflock, &lock->lk_denied);
break;
case (EDEADLK):
status = nfserr_deadlock;
release_lockowner(lock_sop);
if (!cstate->replay_owner)
nfs4_unlock_state();
+ if (file_lock)
+ locks_free_lock(file_lock);
+ if (conflock)
+ locks_free_lock(conflock);
return status;
}
struct nfsd4_lockt *lockt)
{
struct inode *inode;
- struct file_lock file_lock;
+ struct file_lock *file_lock = NULL;
struct nfs4_lockowner *lo;
__be32 status;
struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id);
goto out;
inode = cstate->current_fh.fh_dentry->d_inode;
- locks_init_lock(&file_lock);
+ file_lock = locks_alloc_lock();
+ if (!file_lock) {
+ dprintk("NFSD: %s: unable to allocate lock!\n", __func__);
+ status = nfserr_jukebox;
+ goto out;
+ }
+ locks_init_lock(file_lock);
switch (lockt->lt_type) {
case NFS4_READ_LT:
case NFS4_READW_LT:
- file_lock.fl_type = F_RDLCK;
+ file_lock->fl_type = F_RDLCK;
break;
case NFS4_WRITE_LT:
case NFS4_WRITEW_LT:
- file_lock.fl_type = F_WRLCK;
+ file_lock->fl_type = F_WRLCK;
break;
default:
dprintk("NFSD: nfs4_lockt: bad lock type!\n");
lo = find_lockowner_str(inode, &lockt->lt_clientid, &lockt->lt_owner);
if (lo)
- file_lock.fl_owner = (fl_owner_t)lo;
- file_lock.fl_pid = current->tgid;
- file_lock.fl_flags = FL_POSIX;
+ file_lock->fl_owner = (fl_owner_t)lo;
+ file_lock->fl_pid = current->tgid;
+ file_lock->fl_flags = FL_POSIX;
- file_lock.fl_start = lockt->lt_offset;
- file_lock.fl_end = last_byte_offset(lockt->lt_offset, lockt->lt_length);
+ file_lock->fl_start = lockt->lt_offset;
+ file_lock->fl_end = last_byte_offset(lockt->lt_offset, lockt->lt_length);
- nfs4_transform_lock_offset(&file_lock);
+ nfs4_transform_lock_offset(file_lock);
- status = nfsd_test_lock(rqstp, &cstate->current_fh, &file_lock);
+ status = nfsd_test_lock(rqstp, &cstate->current_fh, file_lock);
if (status)
goto out;
- if (file_lock.fl_type != F_UNLCK) {
+ if (file_lock->fl_type != F_UNLCK) {
status = nfserr_denied;
- nfs4_set_lock_denied(&file_lock, &lockt->lt_denied);
+ nfs4_set_lock_denied(file_lock, &lockt->lt_denied);
}
out:
nfs4_unlock_state();
+ if (file_lock)
+ locks_free_lock(file_lock);
return status;
}
{
struct nfs4_ol_stateid *stp;
struct file *filp = NULL;
- struct file_lock file_lock;
+ struct file_lock *file_lock = NULL;
__be32 status;
int err;
status = nfserr_lock_range;
goto out;
}
- BUG_ON(!filp);
- locks_init_lock(&file_lock);
- file_lock.fl_type = F_UNLCK;
- file_lock.fl_owner = (fl_owner_t)lockowner(stp->st_stateowner);
- file_lock.fl_pid = current->tgid;
- file_lock.fl_file = filp;
- file_lock.fl_flags = FL_POSIX;
- file_lock.fl_lmops = &nfsd_posix_mng_ops;
- file_lock.fl_start = locku->lu_offset;
-
- file_lock.fl_end = last_byte_offset(locku->lu_offset, locku->lu_length);
- nfs4_transform_lock_offset(&file_lock);
+ file_lock = locks_alloc_lock();
+ if (!file_lock) {
+ dprintk("NFSD: %s: unable to allocate lock!\n", __func__);
+ status = nfserr_jukebox;
+ goto out;
+ }
+ locks_init_lock(file_lock);
+ file_lock->fl_type = F_UNLCK;
+ file_lock->fl_owner = (fl_owner_t)lockowner(stp->st_stateowner);
+ file_lock->fl_pid = current->tgid;
+ file_lock->fl_file = filp;
+ file_lock->fl_flags = FL_POSIX;
+ file_lock->fl_lmops = &nfsd_posix_mng_ops;
+ file_lock->fl_start = locku->lu_offset;
+
+ file_lock->fl_end = last_byte_offset(locku->lu_offset,
+ locku->lu_length);
+ nfs4_transform_lock_offset(file_lock);
/*
* Try to unlock the file in the VFS.
*/
- err = vfs_lock_file(filp, F_SETLK, &file_lock, NULL);
+ err = vfs_lock_file(filp, F_SETLK, file_lock, NULL);
if (err) {
dprintk("NFSD: nfs4_locku: vfs_lock_file failed!\n");
goto out_nfserr;
out:
if (!cstate->replay_owner)
nfs4_unlock_state();
+ if (file_lock)
+ locks_free_lock(file_lock);
return status;
out_nfserr:
}
int
-nfs4_has_reclaimed_state(const char *name, bool use_exchange_id)
+nfs4_has_reclaimed_state(const char *name)
{
unsigned int strhashval = clientstr_hashval(name);
struct nfs4_client *clp;
/*
* called from OPEN, CLAIM_PREVIOUS with a new clientid. */
struct nfs4_client_reclaim *
-nfsd4_find_reclaim_client(struct nfs4_client *clp)
+nfsd4_find_reclaim_client(const char *recdir)
{
unsigned int strhashval;
struct nfs4_client_reclaim *crp = NULL;
- dprintk("NFSD: nfs4_find_reclaim_client for %.*s with recdir %s\n",
- clp->cl_name.len, clp->cl_name.data,
- clp->cl_recdir);
+ dprintk("NFSD: nfs4_find_reclaim_client for recdir %s\n", recdir);
- /* find clp->cl_name in reclaim_str_hashtbl */
- strhashval = clientstr_hashval(clp->cl_recdir);
+ strhashval = clientstr_hashval(recdir);
list_for_each_entry(crp, &reclaim_str_hashtbl[strhashval], cr_strhash) {
- if (same_name(crp->cr_recdir, clp->cl_recdir)) {
+ if (same_name(crp->cr_recdir, recdir)) {
return crp;
}
}
* Called from OPEN. Look for clientid in reclaim list.
*/
__be32
-nfs4_check_open_reclaim(clientid_t *clid)
+nfs4_check_open_reclaim(clientid_t *clid, bool sessions)
{
struct nfs4_client *clp;
/* find clientid in conf_id_hashtbl */
- clp = find_confirmed_client(clid);
+ clp = find_confirmed_client(clid, sessions);
if (clp == NULL)
return nfserr_reclaim_bad;
nfs4_lock_state();
list_for_each_entry_safe(clp, next, &client_lru, cl_lru) {
- nfsd4_client_record_remove(clp);
expire_client(clp);
if (++count == num)
break;
printk(KERN_INFO "NFSD: Forgot %d open owners", count);
}
-int nfsd_process_n_delegations(u64 num, struct list_head *list)
+static int nfsd_process_n_delegations(u64 num, struct list_head *list)
{
int i, count = 0;
struct nfs4_file *fp, *fnext;
for (i = 0; i < CLIENT_HASH_SIZE; i++) {
while (!list_empty(&conf_id_hashtbl[i])) {
clp = list_entry(conf_id_hashtbl[i].next, struct nfs4_client, cl_idhash);
- expire_client(clp);
+ destroy_client(clp);
}
while (!list_empty(&unconf_str_hashtbl[i])) {
clp = list_entry(unconf_str_hashtbl[i].next, struct nfs4_client, cl_strhash);
- expire_client(clp);
+ destroy_client(clp);
}
}
INIT_LIST_HEAD(&reaplist);
git.openpandora.org / pandora-kernel.git / blobdiff